Before you purchase an HTC Evo 4G LTE, make sure it doesn't have a bad Electronic Serial Number. All CDMA phones have an ESN used by their carriers to identify them. If the previous owner switched carriers or didn't pay his bills, the phone may have a bad ESN. Furthermore, phones that have been reported stolen or lost usually have bad ESNs. If the ESN is clean, the Evo 4G LTE can be activated on the Sprint, Verizon or U.S. Cellular network in the United States. Note that you can't activate CDMA phones on the AT&T and T-Mobile networks.
Locating the ESN
On most HTC phones, the ESN is located under the battery. Because the HTC Evo 4G LTE's battery is not removable, its ESN is located under the small back cover. The back cover of the 4G LTE has an opening near the Power button that you can use to pry it open. The ESN is printed on a label below the camera. To check if the ESN is blacklisted, you can contact the phone's carrier and provide the number. Note that information obtained from various sources on the Web is not always reliable.
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